Amino Acid Topical Solution works to strengthen weak hair follicles by naturally combating DHT and infusing amino acids. Hair loss and thinning can occur for multiple reasons however you can use plant nutrients to support optimal hair growth. Beauty 4 Ashes® Amino Acids Topical Solution is a balance of essential and non-essential amino acids, including L-Alanine, L-Arginine, L-Aspartic Acid, L-Cysteine, L-Glutamic Acid, L-Glycine, L-Histidine, L-Isoleucine, L-Leucine, L-Lysine, L-Methionine, L-Serine, L-Threonine, L-Tryptophan, and L-Tryosine. Use this daily to get the benefit of stronger, thicker, and healthier looking hair. This product is loaded with whole food nutrition and that is why it is super effective at nourishing neglected scalps and hair shafts. To use just apply directly to scalp and massage with fingertips. Rinsing is not required. Great for men and women.